Artificial refrigerating unit



Aug. 7, 1923.

c. M. HOLLEY ARTIFICIAL REFRIGERATING UNIT Filed Dec'. s1. 1911 nirrATEs reinarV CLARENCE n. noLLnY, or nE'rnoIT, .MICHIGAN, AssreNon 'roUmrrr Corfm'nnssonl CCMPANY, or nn'rnorr, MICHIGAN, a Conrzona'rron ornrcmean.

'nnrrrrcrnn nnrnrsnnarin'e Unir. A

application mea December ai, i917. semi no. anche?.

To all whom it may concern.'

Be it known that I, CLARENCE M. HoLLEY, a citizen of the United States,residing at Detroit, county of Wayne, State of Michigan, have invented acertain new and useful improvement in Artificial Refrigerating' Units,and declare the ollowin 'to bea full',

clear, and exact description or" t e saine, such as will enable othersskilledv in the art to which it pertains -to malte and use the same,

reference being had toA the accompanying f ings, which form part of thisspeciiise principal object of ade artiiicial reiri 'eratin a aratus t. lanle for attachment as a unit to a rerigerator box whereby any ordinaryrefrigerator boi: may be made a complete artincial refrigerator bymounting the unit thereon, provision being made for a circulation of airbetween the storage compartnient and the unit.

While a particular design of refrigerating apparatus is here shown anddescribed, it is to be understood that any well known type of artificialrefrigerating apparatus ma be utilized.

he construction of the unit and the several component parts thereof inrelationshi with the box is shown in the drawing whicii lis a verticalsection of a portion of a refrigerator and of vthe refrigerating unitmounted thereon. f

'llhe refrigerator proper is shown at l and provided with a centraldividing wall 2 forming storage compartments 3 and 4. lhe usualrefrigerators now in use are pro- I vided with a vertical wall similarto the -wall 2 between the ice compartment usually positioned at 3 andthe storage compartment 4f, and this wall in such former types ofrefrigerators did not extend to the'upper cover p 5 of the'retrigerator.With the construction here shown, however, this Wall 2--extends upward,and 'preferably .through an aperture 6 provided in the cover member 5,terminating ush with the upper surface thereof as indicated in thedrawing.

rlhe artificial refrigerating unit is mount# the invention is to'located isprovided-'with the angularl'y posi- The compartment 8 is.separate @om the balance of the box 7 as indicated providing acompartment 11 in vwhich fthe operating apparatus is mounted includingthe motor l2 and a compressor i3 operated by the mofu tor whichcompresses the g'as -tor use in the expansion coils 9. The gas iscompressed and passes by means oit va pipe into cooling'box l5 in whichwater is circulated by means of the pipes l@ and and which the gas iscondensed to 'lhe liquid passes from the cci 15 into the expansion coilsby n; pipe i8. leading into the lower the coil 9 which, in the construshown, is mounted in a box hari-` aperture 20. The coils in 'thehowever, are connected with the colis this arrangement thecoldestpertion o" cooling coils is in the lower part i3' tnereo and theaperture 2O is provided to allora sertion-of a tray containing waterthat may be frozen in small'pans or the iilre 'for table use. After thereri rant has been expandedin the coils 9' it 1s returned to thecompressor 1 3 and again compressedA and discharged through the pipe laas will be readily understood.

The compartment 8 in which the coils are tioned partition wall 21 andthe opening in the bottom of the chamber 8'is of the saine siz'e as'theopening 6 and the portion 6 thereof on the oppositev of the partitionwall 2 of the refrigerator. A By reason o the ooldeu ness of the coils9,- air 1n the comparment tends to fall from the coils 9 into thecompartment 3 of the refrigerator. rhe partition wall 2 does not entendentirely te the bottom of the refrigerator, it being spaced therefrom(although not here shown), and the air falling in the compartment 3 toforce the warmerv air ofthe compartment 4 up through the portion o otthe in the cover 5 into the chamber 8, the Vange.- larly positioned wallforcing the sane ener into the coils9 where it is cooled andagain fallsinto the chamber 3. Thus a. continuo circulation of air through thecoils andstorage compartment is produced and with proper thermostaticcontrol the de sired temperatureis 'continuously mainico vtained in thestorage compartment.

By this arrangement here described, the

entire refrigeratingapparatns may be an no lpartition wall 2 thereinafter the manner indicated in the drawing. The Ybox thus equippedutilizes what is ordinarily the ice compartment for the storage of foodand the capacity of the box is increased to such extent. y By thisarrangement also, if necessity for repair of the apparatus arises, theentire unit may be removed from the box and ship ed to the factory forrepair during whic interval the compartment 3 may be used for ice. Forthis reason I prefer to make the partition wall 2 in two parts beingprovided with an upper portion, 2 that may be made removable to providefor air circulation between the compartments 3 and 4 when ice is used inthe compartment 3 and the unit removed from the box. If the unit beremoved it is necessary to cover the apertures 6 and 6a in some mannerto prevent an escape of air from the box and introduction of the warmair from the exterior. While I have here shown a peculiar form ofrefrigerating coil, the coil may be in any approved form adaptable forthe purpose the essential characteristic being that the coil should beentirelysupported by the compartment 8 of the box 7.

Having thus briefly described my invention, its utilit and mode ofoperation, what I claim and esire to secure by Letters Patent of theUnited States is- 1. The combination with a 'refrigerator box having twostorage compartments and a vertical 'partition wall therebetween and anaperture in the upper horizontal wall of the refrigerator opening intoboth storage compartments, of an artificial refrigerating apparatusincluding expansion coils, a compartment for the coils open on the lowerside adapted to fit over the aperture in the refrigerator wall with thecoils positioned over lone of the said storage compartments providingfor circulation of air upward from one of the'storage compartments intothe coil compartment and thence downward into the other storagecompartment.

2. The combination with a refrigerator having two storage compartmentsand a vertical partition wall therebetween and an aperture in the upperhorizontal wall of the refrigerator to which the partition extends, thecompartments being in communivcation at the bottom, of an artificialrefrigerating apparatus including the expansion coils and means forcompressing fluid for expansion therein, a box for the said refrig-lerating apparatus. a compartment formed in the said box for theexpansion coils, said compartmenthaving an opening in the loweristration with the aperture in the refrig-` erator wall.

3. In combination a refrigerator box having two storage compartments anda vertical partition'wall therebetween, the upper wall of therefrigerator box having an aperture and the partition wall extendingthereinto, an artificial refrigerating apparatus including 'theexpansion coils, a box containing the apparatus, a compartment formed inthe box for the ex-pansion coils, the coil compartment having anangularly vpositioned wall and being open at the bottom, said .apparatusand box therefor being adapted to be placed on the upper wall of therefrigerator box with the open end of the coil compartment inregistration with the said aperture in the upperhorizontal wall, theangularly positioned wall of the coil compartment extending oversaidaperture whereby atmosphere rising through one part of the aperturestrikes said angular wall and is deiiected into the expansion coils tofall by gravity into the storage Ycompartment therebelow.

4. The combination with a. refrigerator having two storage compartmentsand an aperture in the upper horizontal wall opening into the top ofboth storage compartments of a refrigerating unit comprising a box likemember having a closed compartment for the motor, compressor, etc., anda separate compartment for the expansion coils, the said expansion coilcompartment having an opening adapted to register wall of therefrigerator, the arrangement being such Athat the said expansion coilsare positioned directly over om` storage conlpartment whereby air maypass upward from said compartment through the coils and downward intothe other storage compartment.

5. The combination with a refrigerator having a vertical wall dividingthe same into two storage compartments in communication at the bottom,the box having an aperture in the upper horizontal wall opening into thetop of both compartments, of a refrigerating unit comprising asupporting member carrying the motor, compressor, etc., provided with acompartment for the expansion coils of the unit, said compartment beingopen at the bottom and registering with the opening in the refrigeratorwall whereby air may ascendv from one of the storage compartmentsthrough the expansion coil compartment and downward into the otherstorage compartment.

6. The combination with a refrigerator box having two storagecompartments and an aperture inthe upper horizontal wall lli) incassoopening into the top of both storage compartments, of a refrigeratingunit adapted to be attached to or removedbodily from. the refrigeratorbox comprising a supporting member having a base fitting therefrigerator top and carrying the motor, compressor and circulatingsystem including expansion coils, and belng provided with a.

' the opposite wall of the said coil compartment and directly over oneof the storage compartments, the said incl-ined wall directingascending'air about the expansion coils to fall by gravity into theother storage compartment.

7. llhe combination with a refrigerator A box having an aperture in theupper hori- Zontal wall, of a refrigerating unit adapted for attachmentto or removal from the box comprising a base, a motor, a compressor anda circulating system including compression and expanslon coils mountedon the base, a

compartment formed on the said baseopen at the bottom only through thebase, the expansion coils of the circulating system only belng carriedin' the said compartment, the opening of the compartment registeringwith the opening in the refrigerator wall and the coils being disposedon one side of the coil compartment permitting air to rise into the coilcompartmenton one side and thence downward about the coils into therefrigerator. A

8. In a refrigerating apparatus, the combination with a refrigeratorhaving an opening or openings in its outside wall enclosing the space tobe refrigerated, of a separate and detachable cooling compartmentlocated outside of the refrigerator and applied to said outside wall,said compartment communicating with said openings for permitting acirculation of airfrom the interior space of the refrigerator to andfrom said cooling compartment, and a refrigerating machine having itscooling element located within said outside compartment.

9. ln a refrigerating apparatus, the com'- bination with a refrigeratorhaving an outside wall enclosing the space to be refrigerated, ofa rigidframe or base mounted on the outside wall 'of the refrigerator, acooling compartment outside of the refrigerator and carried by saidbase, a refrigerating machine also carried by said base and having itscooling element located Within said compartment, and means forpermitting a circulation of air between the interior space of therefrigerator and said outside compartment.

10. In a refrigerating apparatus, the combinatlon with a refrigeratorhaving an opening or openings in its outside wall enclosing the space tobe refrigerated, of a rigid frame or base mounted on the outside Wallaround said opening or openings, a cooling compartment mounted onsaidbase outside of the refrigerator and communicating with said` opening oropening-sl for permittinga circulation of air between the interior4space of the refrigerator and said compartment, and a refrigeratingmachine also carried by said base and having its cooling element locatedin said outside compartment.

. 11. A refrigerating unit adapted to be ap plied to an outside wall ofa refrigerator, and comprising a rigid frame or base, a coolingcompartment carried by said base and adapted to be supported outside ofthe refrigerator, and a refrigerating machine also carried by said vbaseand having its cooling element in said compartment.

12. In a refrigerating apparatus, the combination with a refrigeratorhaving an open# tok ing in an outside wall, of a separate coolings'compartment located outside of the refrigerator over said opening andcommunicating therewith, a refrigerating machine having a coolingelement located in said compartment, and a vdeile'cting plate extendingfrom said compartment through the opening into the refrigerator fordirecting the air therefrom into said compartment.

In testimony whereof, I sign this specification. y

CLARENCE M. IIOfLLEY.`

